Estudio geotécnico in Vilaboa

In Vilaboa, soils of sandstone, conglomerates and flysch predominate, accounting for almost 86% of the substrate, followed by small proportions of slate, schists and some fine sands and silts. These materials generally exhibit low to very low permeability, although shallow aquifers may be found in certain areas, which requires special attention when defining the hydraulic characteristics of the ground. With regard to bearing capacity, this type of substrate favours shallow foundations, although specific geotechnical characterisation will be necessary to rule out heterogeneities that could affect structural behaviour.

Seismicity in Vilaboa is moderate, with 11 recorded events over the last 30 years and a maximum magnitude of 2.8, which does not introduce relevant structural constraints for design. There is no presence of karst or expansive clay soils, which minimises the risks of collapse or volumetric expansion. As the substrate is not clayey, the risk of expansivity is considered ruled out, with the low permeability of the ground being the main factor to be managed by the geotechnical study.